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SizeOf is a simple java agent what can be used to calculate the memory
size of java objects. The agent is implemented with the
java.lang.instrument introduced with java 5.
Here is a simple howto:
1) use the class SizeOf in your code to test the size of your java object:
// calculate object size
SizeOf.sizeOf(<your object>)
SizeOf.deepSizeOf(<your object>)
Optionally, configure SizeOf's behavior with
SizeOf.skipStaticField(false) or SizeOf.skipFlyWeightObject(true)
(defaults are true and false, respectively).
2) start the jvm with the argument: -javaagent:<path to>/SizeOf.jar
Improvements and suggestions are welcome!